Good video but if I may, if you ever decide to do another one it would be very helpful to see the same rifles shot without a break for comparison.
Not all stock and action combos handle recoil in the same way so it would be interesting to look at barrel whip, muzzle rise, and whether or not the combo produced similar contact issues with/without a brake.
Thank You. The Videos were a tool to try and understand the problems that recoil caused, and in the process we discovered many things that effected the rifle.
In the Video we tested many different designs of brakes and in this video we were looking for a phenomenon that I had discovered with my 6.5 pound 338 RCM. every time I shot something I found my self looking at the ground. I had one of the best brakes made with top ports on it and was trying to figure out what was happening.
Normally while hunting you would not strap the rifle down and could not see this effect. But off
a by pod or deer blind window ledge the reaction would be easer to gauge the effects on Video.
The next Video we do, I will incorporate an un braked rifle like we did on the recoil test. We did test rifles without brakes and edited them out (To shorten the length of the Video) because they only produced more muzzle rise than all other with different kinds of brakes. On the Video you will see one rifle that has the brake with top ports and the same brake was tested with top ports plugged in the same test. with the brake, Excessive down force. with the top ports plugged, muzzle rise. The results of these test were, the better the brake is at reducing recoil the less the muzzle rise.
The one thing we did see with rifles that had nothing on the barrel Irregardless of barrel diameter
there was no visible barrel flexing. rifles are designed to recoil backwards and upwards depending a lot on the stocks shape. However the lighter the barrel the more twisting/torqueing it will do because of the bullet trying to straighten out the rifling upon firing.
And you are right about different stocks reacting differently. The stocks shape, drop and strength all have a Bearing on how it reacts to recoil. also we found that the heaver the barrel the more down force it placed on the stock. light barrels simply flexed down if the rifle was restrained in moving.
on the 300 rum in the test that was flexing the wrist area of the stock we discontinued testing it
in fear it would brake (It had a #5 barrel that was stronger than the stock).
In the accuracy test we found that .020 to .025 was the best muzzle brake bore diameter over the bullet diameter. Was/is this because of the shock wave striking the internal parts of the brake?
I can only guess at this point because the results were indicating something was going on and
the only thing that precedes the bullet is the shock wave. But until we can prove by a definitive test
It is the only reason makes sense. different brake designs may alter this also and require different minimum and maximum bore diameters for brakes.
There will be more test Videos because we want to understand the physics of our rifle systems and ways to improve on them. Also I have found that many of the excepted rules of muzzle brake design that I thought were fixed and un changeable were wrong and ether perception or opinion on my part and proof of there existence was the reason for the Video in the first place. All test were apples to apples so there would be no question as to there validity.
I have been stunned/shocked many times during the test we performed and came to the conclusion
that the rule is, "there is no rule unless you can prove it". Much more to learn.
Sorry about being so long winded
We will keep "Pressing On"
J E CUSTOM
